Picture of small river
Latest Outlook
Outlook map for November 2021, showing that in November river flows in southern regions are likely to be above normal, and normal to above normal elsewhere

November 2021 Hydrological Outlook

Period: From November 2021      Issued on 08.11.2021 using data to the end of October 2021

In most regions of the UK river flows are likely to be normal to above normal during November, while in south Wales and southern areas of England river flows are likely to be above normal. Groundwater levels are likely to be above normal except in parts of eastern England where normal levels are most likely. Over the three month period to January 2022, river flows expected to be normal to above normal everywhere, while groundwater levels are likely to be normal.

Rainfall:

October rainfall was above average for the majority of the UK, notably so in Cumbria and southern Scotland. Some parts of mid-Wales and central England had less than average rainfall

The rainfall outlook (issued by the Met Office on 25.10.2021) is that the chance of a wet . November is higher than normal, and that there is a higher than normal chance of wet conditions over the period to January.

River flows:

River flows in October were in the normal range in central and north-eastern parts of England, and Northern Ireland and above normal elsewhere (note that data are unavailable for Scotland).

Above normal river flows are likely to persist in southern parts of Wales and England during November. In more northerly parts river flows are likely to be in the normal to above normal range, with normal flows more likely in central England and above normal flows more likely in north Wales, north-west England and eastern Scotland.

In the three months to January, river flows are likely to be in the normal to above normal range throughout the UK.

Groundwater:

Normal groundwater levels were recorded during October in the chalk and limestone aquifers in central England, with levels being generally above normal elsewhere.

During November normal groundwater levels are expected in some parts of eastern England, with above normal levels expected to persist elsewhere.

Over the three months to January, groundwater levels are expected to be in the normal range in all areas.